[PATCH 2/3] scsi: qedf: Use 'dma_zalloc_coherent' to reduce code verbosity.

[Christophe JAILLET]

Replace some 'dma_alloc_coherent+memset' by some quivalent
'dma_zalloc_coherent' in order to reduce code verbosity

Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
---
 drivers/scsi/qedf/qedf_main.c | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 52a27100ca6d..19a2bbc65f54 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -972,17 +972,16 @@ static int qedf_alloc_sq(struct qedf_ctx *qedf, struct 
qedf_rport *fcport)
            sizeof(void *);
        fcport->sq_pbl_size = fcport->sq_pbl_size + QEDF_PAGE_SIZE;
 
-       fcport->sq = dma_alloc_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
-           &fcport->sq_dma, GFP_KERNEL);
+       fcport->sq = dma_zalloc_coherent(&qedf->pdev->dev,
+           fcport->sq_mem_size, &fcport->sq_dma, GFP_KERNEL);
        if (!fcport->sq) {
                QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send "
                           "queue.\n");
                rval = 1;
                goto out;
        }
-       memset(fcport->sq, 0, fcport->sq_mem_size);
 
-       fcport->sq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
+       fcport->sq_pbl = dma_zalloc_coherent(&qedf->pdev->dev,
            fcport->sq_pbl_size, &fcport->sq_pbl_dma, GFP_KERNEL);
        if (!fcport->sq_pbl) {
                QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send "
@@ -990,7 +989,6 @@ static int qedf_alloc_sq(struct qedf_ctx *qedf, struct 
qedf_rport *fcport)
                rval = 1;
                goto out_free_sq;
        }
-       memset(fcport->sq_pbl, 0, fcport->sq_pbl_size);
 
        /* Create PBL */
        num_pages = fcport->sq_mem_size / QEDF_PAGE_SIZE;
@@ -2597,14 +2595,13 @@ static int qedf_alloc_bdq(struct qedf_ctx *qedf)
        }
 
        /* Allocate list of PBL pages */
-       qedf->bdq_pbl_list = dma_alloc_coherent(&qedf->pdev->dev,
+       qedf->bdq_pbl_list = dma_zalloc_coherent(&qedf->pdev->dev,
            QEDF_PAGE_SIZE, &qedf->bdq_pbl_list_dma, GFP_KERNEL);
        if (!qedf->bdq_pbl_list) {
                QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate list of PBL "
                    "pages.\n");
                return -ENOMEM;
        }
-       memset(qedf->bdq_pbl_list, 0, QEDF_PAGE_SIZE);
 
        /*
         * Now populate PBL list with pages that contain pointers to the
@@ -2689,7 +2686,7 @@ static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
                    ALIGN(qedf->global_queues[i]->cq_pbl_size, QEDF_PAGE_SIZE);
 
                qedf->global_queues[i]->cq =
-                   dma_alloc_coherent(&qedf->pdev->dev,
+                   dma_zalloc_coherent(&qedf->pdev->dev,
                        qedf->global_queues[i]->cq_mem_size,
                        &qedf->global_queues[i]->cq_dma, GFP_KERNEL);
 
@@ -2699,11 +2696,9 @@ static int qedf_alloc_global_queues(struct qedf_ctx 
*qedf)
                        status = -ENOMEM;
                        goto mem_alloc_failure;
                }
-               memset(qedf->global_queues[i]->cq, 0,
-                   qedf->global_queues[i]->cq_mem_size);
 
                qedf->global_queues[i]->cq_pbl =
-                   dma_alloc_coherent(&qedf->pdev->dev,
+                   dma_zalloc_coherent(&qedf->pdev->dev,
                        qedf->global_queues[i]->cq_pbl_size,
                        &qedf->global_queues[i]->cq_pbl_dma, GFP_KERNEL);
 
@@ -2713,8 +2708,6 @@ static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
                        status = -ENOMEM;
                        goto mem_alloc_failure;
                }
-               memset(qedf->global_queues[i]->cq_pbl, 0,
-                   qedf->global_queues[i]->cq_pbl_size);
 
                /* Create PBL */
                num_pages = qedf->global_queues[i]->cq_mem_size /
-- 
2.11.0